Whiffletree



G. KENNY.

Whiiflebree. I

No. 15.461 Patented July 29, 1856.

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GEORGE KENNY, OF MILFORD, NEWV HAMPSHIRE, ASSIGNOR TO GEORGE KENNY AND GEORGE N. DAVIS, OF BOSTON, MASSACHUSETTS.

WHIFFLETREE.

Specification of Letters Patent No. 15,461, dated July 29, 1856.

To all whom it may concern:

Be it known that I, GEORGE KENNY, of Milford, in the county of Hillsboro and State of New Hampshire, have invented certain new and useful Improvements in WVhiffletrees, and that the following description, taken in connection with the accompanying drawings hereinafter referred to, forms a full and exact specification of the same, wherein I have set forth the nature and principles of my said improvements by which my invention may be distinguished from others of a similar class, together with such parts as I claim and desire to have sccured to me by Letters Patent.

The figures of the accompanying plate of drawings represent my improvements.

Figure 1 is a central longitudinal vertical section of a Whittle-tree, &c. Fig. 2 is a transverse vertical section of the same, taken in the plane of the line A B, Fig. 1.

The present invention relates to that class of Whittle-trees in which the whiffle-tree is placed in front of the draw-bar, its object being to prevent wear and noise. These objections attendant upon the use of Whitfietrees constructed in the usual manner are obviated by my improvements, which consist in applying vulcanized rubber about the king-bolt or draw-bolt the rubber be-' ing inclosed and protected by a suitable box.

cm in the drawings represents the whiffletree and b5 the draw-bar the two being connected by horizontal braces cc-0Zd.

66 is the bolt upon which the whifile-tree turns, and extends through both braces 0ccZcZ, being secured by a nut f, as will be readily understood by inspection of the drawings. A tubular piece of rubber g is placed around the bolt 66 and inclosed by a cylindrical strap h. The two braces 00dd cover the top and bottom of the rubber. Thus the rubber is inclosed in a cylindrical box, formed by the braces 00-(ZCZ and the strap h, thereby completely protecting the rubber and excluding all dirt, &c., which if allowed an entrance would soon wear out the rubber. By this arrangement all wear upon the bolt 66 is prevented and no rattling or noise produced.

It will be seen that my peculiar arrangement of rubber within the cylindrical strap and between the braces 00, dd (so as to be compressed by a nut on the bolt 66), provides for keeping the rubber from turning on the bolt, so that the torsion of the rubber operates to spring the Whittle-tree back when it is turned, as well as to prevent the wear and noise.

What I claim as my invention anddesire to have secured to me by Letters Patent is The combination of rubber about the bolt on which the whiflie tree turns within the cylindrical strap and between the braces 0ccZcZ so that it may be compressed, and thereby operate as a spring as specified as well as serve to keep out the dirt and prevent the wear and noise.

GEORGE KENNY.

WVitnesses:

Gr. WADLEIGH, MARTIN HALL. 

